diff options
Diffstat (limited to 'lib/libc')
| -rw-r--r-- | lib/libc/gen/sysctl.3 | 26 |
1 files changed, 25 insertions, 1 deletions
diff --git a/lib/libc/gen/sysctl.3 b/lib/libc/gen/sysctl.3 index de1053d42aa..803e9412380 100644 --- a/lib/libc/gen/sysctl.3 +++ b/lib/libc/gen/sysctl.3 @@ -1,4 +1,4 @@ -.\" $OpenBSD: sysctl.3,v 1.96 2002/12/17 23:11:32 millert Exp $ +.\" $OpenBSD: sysctl.3,v 1.97 2003/01/21 22:52:07 markus Exp $ .\" .\" Copyright (c) 1993 .\" The Regents of the University of California. All rights reserved. @@ -757,6 +757,30 @@ return the number of elements in the the argv or env array. returns the argv array and .Dv KERN_PROC_ENV returns the environ array. +.It Dv KERN_WATCHDOG +If the kernel does not support a hardware watchdog timer, +attempts to retrieve or set any of the +.Dv KERN_WATCHDOG +values will fail with +.Er EOPNOTSUPP . +.Bl -column "KERN_WATCHDOG_PERIOD" "integer" "yes" -offset indent +.It Sy "Third level name" Type Changeable +.It Dv KERN_WATCHDOG_PERIOD integer yes +.It Dv KERN_WATCHDOG_AUTO integer yes +.El +.Pp +The variables are as follows: +.Bl -tag -width "123456" +.It Dv KERN_WATCHDOG_PERIOD +The period of the watchdog timer in seconds. +Set to 0 to disable the watchdog timer. +.It Dv KERN_WATCHDOG_AUTO +If set to 1, the kernel refreshes the watchdog timer periodically. +If set to 0, a userland process must ensure that the watchdog timer +gets refreshed by setting the +.Dv KERN_WATCHDOG_PERIOD +variable. +.El .El .Ss CTL_MACHDEP The set of variables defined is architecture dependent. |